// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_IOS
#define _LIBCPP_IOS
/*
ios synopsis
#include <iosfwd>
namespace std
{
typedef OFF_T streamoff;
typedef SZ_T streamsize;
template <class stateT> class fpos;
class ios_base
{
public:
class failure;
typedef T1 fmtflags;
static constexpr fmtflags boolalpha;
static constexpr fmtflags dec;
static constexpr fmtflags fixed;
static constexpr fmtflags hex;
static constexpr fmtflags internal;
static constexpr fmtflags left;
static constexpr fmtflags oct;
static constexpr fmtflags right;
static constexpr fmtflags scientific;
static constexpr fmtflags showbase;
static constexpr fmtflags showpoint;
static constexpr fmtflags showpos;
static constexpr fmtflags skipws;
static constexpr fmtflags unitbuf;
static constexpr fmtflags uppercase;
static constexpr fmtflags adjustfield;
static constexpr fmtflags basefield;
static constexpr fmtflags floatfield;
typedef T2 iostate;
static constexpr iostate badbit;
static constexpr iostate eofbit;
static constexpr iostate failbit;
static constexpr iostate goodbit;
typedef T3 openmode;
static constexpr openmode app;
static constexpr openmode ate;
static constexpr openmode binary;
static constexpr openmode in;
static constexpr openmode noreplace; // since C++23
static constexpr openmode out;
static constexpr openmode trunc;
typedef T4 seekdir;
static constexpr seekdir beg;
static constexpr seekdir cur;
static constexpr seekdir end;
class Init;
// 27.5.2.2 fmtflags state:
fmtflags flags() const;
fmtflags flags(fmtflags fmtfl);
fmtflags setf(fmtflags fmtfl);
fmtflags setf(fmtflags fmtfl, fmtflags mask);
void unsetf(fmtflags mask);
streamsize precision() const;
streamsize precision(streamsize prec);
streamsize width() const;
streamsize width(streamsize wide);
// 27.5.2.3 locales:
locale imbue(const locale& loc);
locale getloc() const;
// 27.5.2.5 storage:
static int xalloc();
long& iword(int index);
void*& pword(int index);
// destructor
virtual ~ios_base();
// 27.5.2.6 callbacks;
enum event { erase_event, imbue_event, copyfmt_event };
typedef void (*event_callback)(event, ios_base&, int index);
void register_callback(event_callback fn, int index);
ios_base(const ios_base&) = delete;
ios_base& operator=(const ios_base&) = delete;
static bool sync_with_stdio(bool sync = true);
protected:
ios_base();
};
template <class charT, class traits = char_traits<charT> >
class basic_ios
: public ios_base
{
public:
// types:
typedef charT char_type;
typedef typename traits::int_type int_type; // removed in C++17
typedef typename traits::pos_type pos_type; // removed in C++17
typedef typename traits::off_type off_type; // removed in C++17
typedef traits traits_type;
operator unspecified-bool-type() const;
bool operator!() const;
iostate rdstate() const;
void clear(iostate state = goodbit);
void setstate(iostate state);
bool good() const;
bool eof() const;
bool fail() const;
bool bad() const;
iostate exceptions() const;
void exceptions(iostate except);
// 27.5.4.1 Constructor/destructor:
explicit basic_ios(basic_streambuf<charT,traits>* sb);
virtual ~basic_ios();
// 27.5.4.2 Members:
basic_ostream<charT,traits>* tie() const;
basic_ostream<charT,traits>* tie(basic_ostream<charT,traits>* tiestr);
basic_streambuf<charT,traits>* rdbuf() const;
basic_streambuf<charT,traits>* rdbuf(basic_streambuf<charT,traits>* sb);
basic_ios& copyfmt(const basic_ios& rhs);
char_type fill() const;
char_type fill(char_type ch);
locale imbue(const locale& loc);
char narrow(char_type c, char dfault) const;
char_type widen(char c) const;
basic_ios(const basic_ios& ) = delete;
basic_ios& operator=(const basic_ios&) = delete;
protected:
basic_ios();
void init(basic_streambuf<charT,traits>* sb);
void move(basic_ios& rhs);
void swap(basic_ios& rhs) noexcept;
void set_rdbuf(basic_streambuf<charT, traits>* sb);
};
// 27.5.5, manipulators:
ios_base& boolalpha (ios_base& str);
ios_base& noboolalpha(ios_base& str);
ios_base& showbase (ios_base& str);
ios_base& noshowbase (ios_base& str);
ios_base& showpoint (ios_base& str);
ios_base& noshowpoint(ios_base& str);
ios_base& showpos (ios_base& str);
ios_base& noshowpos (ios_base& str);
ios_base& skipws (ios_base& str);
ios_base& noskipws (ios_base& str);
ios_base& uppercase (ios_base& str);
ios_base& nouppercase(ios_base& str);
ios_base& unitbuf (ios_base& str);
ios_base& nounitbuf (ios_base& str);
// 27.5.5.2 adjustfield:
ios_base& internal (ios_base& str);
ios_base& left (ios_base& str);
ios_base& right (ios_base& str);
// 27.5.5.3 basefield:
ios_base& dec (ios_base& str);
ios_base& hex (ios_base& str);
ios_base& oct (ios_base& str);
// 27.5.5.4 floatfield:
ios_base& fixed (ios_base& str);
ios_base& scientific (ios_base& str);
ios_base& hexfloat (ios_base& str);
ios_base& defaultfloat(ios_base& str);
// 27.5.5.5 error reporting:
enum class io_errc
{
stream = 1
};
concept_map ErrorCodeEnum<io_errc> { };
error_code make_error_code(io_errc e) noexcept;
error_condition make_error_condition(io_errc e) noexcept;
storage-class-specifier const error_category& iostream_category() noexcept;
} // std
*/
#include <__config>
#if !defined(_LIBCPP_HAS_NO_LOCALIZATION)
# include <__fwd/ios.h>
# include <__ios/fpos.h>
# include <__locale>
# include <__memory/addressof.h>
# include <__system_error/error_category.h>
# include <__system_error/error_code.h>
# include <__system_error/error_condition.h>
# include <__system_error/system_error.h>
# include <__utility/swap.h>
# include <__verbose_abort>
# include <version>
// standard-mandated includes
// [ios.syn]
# include <iosfwd>
# if !defined(_LIBCPP_HAS_NO_ATOMIC_HEADER)
# include <__atomic/atomic.h> // for __xindex_
# endif
# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
# endif
_LIBCPP_PUSH_MACROS
# include <__undef_macros>
_LIBCPP_BEGIN_NAMESPACE_STD
typedef ptrdiff_t streamsize;
class _LIBCPP_EXPORTED_FROM_ABI ios_base {
public:
class _LIBCPP_EXPORTED_FROM_ABI failure;
typedef unsigned int fmtflags;
static const fmtflags boolalpha = 0x0001;
static const fmtflags dec = 0x0002;
static const fmtflags fixed = 0x0004;
static const fmtflags hex = 0x0008;
static const fmtflags internal = 0x0010;
static const fmtflags left = 0x0020;
static const fmtflags oct = 0x0040;
static const fmtflags right = 0x0080;
static const fmtflags scientific = 0x0100;
static const fmtflags showbase = 0x0200;
static const fmtflags showpoint = 0x0400;
static const fmtflags showpos = 0x0800;
static const fmtflags skipws = 0x1000;
static const fmtflags unitbuf = 0x2000;
static const fmtflags uppercase = 0x4000;
static const fmtflags adjustfield = left | right | internal;
static const fmtflags basefield = dec | oct | hex;
static const fmtflags floatfield = scientific | fixed;
typedef unsigned int iostate;
static const iostate badbit = 0x1;
static const iostate eofbit = 0x2;
static const iostate failbit = 0x4;
static const iostate goodbit = 0x0;
typedef unsigned int openmode;
static const openmode app = 0x01;
static const openmode ate = 0x02;
static const openmode binary = 0x04;
static const openmode in = 0x08;
static const openmode out = 0x10;
static const openmode trunc = 0x20;
# if _LIBCPP_STD_VER >= 23
static const openmode noreplace = 0x40;
# endif
enum seekdir { beg, cur, end };
# if _LIBCPP_STD_VER <= 14
typedef iostate io_state;
typedef openmode open_mode;
typedef seekdir seek_dir;
typedef std::streamoff streamoff;
typedef std::streampos streampos;
# endif
class _LIBCPP_EXPORTED_FROM_ABI Init;
// 27.5.2.2 fmtflags state:
_LIBCPP_HIDE_FROM_ABI fmtflags flags() const;
_LIBCPP_HIDE_FROM_ABI fmtflags flags(fmtflags __fmtfl);
_LIBCPP_HIDE_FROM_ABI fmtflags setf(fmtflags __fmtfl);
_LIBCPP_HIDE_FROM_ABI fmtflags setf(fmtflags __fmtfl, fmtflags __mask);
_LIBCPP_HIDE_FROM_ABI void unsetf(fmtflags __mask);
_LIBCPP_HIDE_FROM_ABI streamsize precision() const;
_LIBCPP_HIDE_FROM_ABI streamsize precision(streamsize __prec);
_LIBCPP_HIDE_FROM_ABI streamsize width() const;
_LIBCPP_HIDE_FROM_ABI streamsize width(streamsize __wide);
// 27.5.2.3 locales:
locale imbue(const locale& __loc);
locale getloc() const;
// 27.5.2.5 storage:
static int xalloc();
long& iword(int __index);
void*& pword(int __index);
// destructor
virtual ~ios_base();
// 27.5.2.6 callbacks;
enum event { erase_event, imbue_event, copyfmt_event };
typedef void (*event_callback)(event, ios_base&, int __index);
void register_callback(event_callback __fn, int __index);
ios_base(const ios_base&) = delete;
ios_base& operator=(const ios_base&) = delete;
static bool sync_with_stdio(bool __sync = true);
_LIBCPP_HIDE_FROM_ABI iostate rdstate() const;
void clear(iostate __state = goodbit);
_LIBCPP_HIDE_FROM_ABI void setstate(iostate __state);
_LIBCPP_HIDE_FROM_ABI bool good() const;
_LIBCPP_HIDE_FROM_ABI bool eof() const;
_LIBCPP_HIDE_FROM_ABI bool fail() const;
_LIBCPP_HIDE_FROM_ABI bool bad() const;
_LIBCPP_HIDE_FROM_ABI iostate exceptions() const;
_LIBCPP_HIDE_FROM_ABI void exceptions(iostate __iostate);
void __set_badbit_and_consider_rethrow();
void __set_failbit_and_consider_rethrow();
_LIBCPP_HIDE_FROM_ABI void __setstate_nothrow(iostate __state) {
if (__rdbuf_)
__rdstate_ |= __state;
else
__rdstate_ |= __state | ios_base::badbit;
}
protected:
_LIBCPP_HIDE_FROM_ABI ios_base() : __loc_(nullptr) {
// Purposefully does no initialization
//
// Except for the locale, this is a sentinel to avoid destroying
// an uninitialized object. See
// test/libcxx/input.output/iostreams.base/ios.base/ios.base.cons/dtor.uninitialized.pass.cpp
// for the details.
}
void init(void* __sb);
_LIBCPP_HIDE_FROM_ABI void* rdbuf() const { return __rdbuf_; }
_LIBCPP_HIDE_FROM_ABI void rdbuf(void* __sb) {
__rdbuf_ = __sb;
clear();
}
void __call_callbacks(event);
void copyfmt(const ios_base&);
void move(ios_base&);
void swap(ios_base&) _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI void set_rdbuf(void* __sb) { __rdbuf_ = __sb; }
private:
// All data members must be scalars
fmtflags __fmtflags_;
streamsize __precision_;
streamsize __width_;
iostate __rdstate_;
iostate __exceptions_;
void* __rdbuf_;
void* __loc_;
event_callback* __fn_;
int* __index_;
size_t __event_size_;
size_t __event_cap_;
// TODO(EricWF): Enable this for both Clang and GCC. Currently it is only
// enabled with clang.
# if defined(_LIBCPP_HAS_C_ATOMIC_IMP) && !defined(_LIBCPP_HAS_NO_THREADS)
static atomic<int> __xindex_;
# else
static int __xindex_;
# endif
long* __iarray_;
size_t __iarray_size_;
size_t __iarray_cap_;
void** __parray_;
size_t __parray_size_;
size_t __parray_cap_;
};
// enum class io_errc
_LIBCPP_DECLARE_STRONG_ENUM(io_errc){stream = 1};
_LIBCPP_DECLARE_STRONG_ENUM_EPILOG(io_errc)
template <>
struct _LIBCPP_TEMPLATE_VIS is_error_code_enum<io_errc> : public true_type {};
# ifdef _LIBCPP_CXX03_LANG
template <>
struct _LIBCPP_TEMPLATE_VIS is_error_code_enum<io_errc::__lx> : public true_type {};
# endif
_LIBCPP_EXPORTED_FROM_ABI const error_category& iostream_category() _NOEXCEPT;
inline _LIBCPP_HIDE_FROM_ABI error_code make_error_code(io_errc __e) _NOEXCEPT {
return error_code(static_cast<int>(__e), iostream_category());
}
inline _LIBCPP_HIDE_FROM_ABI error_condition make_error_condition(io_errc __e) _NOEXCEPT {
return error_condition(static_cast<int>(__e), iostream_category());
}
class _LIBCPP_EXPORTED_FROM_ABI ios_base::failure : public system_error {
public:
explicit failure(const string& __msg, const error_code& __ec = io_errc::stream);
explicit failure(const char* __msg, const error_code& __ec = io_errc::stream);
_LIBCPP_HIDE_FROM_ABI failure(const failure&) _NOEXCEPT = default;
~failure() _NOEXCEPT override;
};
[[__noreturn__]] inline _LIBCPP_HIDE_FROM_ABI void __throw_failure(char const* __msg) {
# ifndef _LIBCPP_HAS_NO_EXCEPTIONS
throw ios_base::failure(__msg);
# else
_LIBCPP_VERBOSE_ABORT("ios_base::failure was thrown in -fno-exceptions mode with message \"%s\"", __msg);
# endif
}
class _LIBCPP_EXPORTED_FROM_ABI ios_base::Init {
public:
Init();
~Init();
};
// fmtflags
inline _LIBCPP_HIDE_FROM_ABI ios_base::fmtflags ios_base::flags() const { return __fmtflags_; }
inline _LIBCPP_HIDE_FROM_ABI ios_base::fmtflags ios_base::flags(fmtflags __fmtfl) {
fmtflags __r = __fmtflags_;
__fmtflags_ = __fmtfl;
return __r;
}
inline _LIBCPP_HIDE_FROM_ABI ios_base::fmtflags ios_base::setf(fmtflags __fmtfl) {
fmtflags __r = __fmtflags_;
__fmtflags_ |= __fmtfl;
return __r;
}
inline _LIBCPP_HIDE_FROM_ABI void ios_base::unsetf(fmtflags __mask) { __fmtflags_ &= ~__mask; }
inline _LIBCPP_HIDE_FROM_ABI ios_base::fmtflags ios_base::setf(fmtflags __fmtfl, fmtflags __mask) {
fmtflags __r = __fmtflags_;
unsetf(__mask);
__fmtflags_ |= __fmtfl & __mask;
return __r;
}
// precision
inline _LIBCPP_HIDE_FROM_ABI streamsize ios_base::precision() const { return __precision_; }
inline _LIBCPP_HIDE_FROM_ABI streamsize ios_base::precision(streamsize __prec) {
streamsize __r = __precision_;
__precision_ = __prec;
return __r;
}
// width
inline _LIBCPP_HIDE_FROM_ABI streamsize ios_base::width() const { return __width_; }
inline _LIBCPP_HIDE_FROM_ABI streamsize ios_base::width(streamsize __wide) {
streamsize __r = __width_;
__width_ = __wide;
return __r;
}
// iostate
inline _LIBCPP_HIDE_FROM_ABI ios_base::iostate ios_base::rdstate() const { return __rdstate_; }
inline _LIBCPP_HIDE_FROM_ABI void ios_base::setstate(iostate __state) { clear(__rdstate_ | __state); }
inline _LIBCPP_HIDE_FROM_ABI bool ios_base::good() const { return __rdstate_ == 0; }
inline _LIBCPP_HIDE_FROM_ABI bool ios_base::eof() const { return (__rdstate_ & eofbit) != 0; }
inline _LIBCPP_HIDE_FROM_ABI bool ios_base::fail() const { return (__rdstate_ & (failbit | badbit)) != 0; }
inline _LIBCPP_HIDE_FROM_ABI bool ios_base::bad() const { return (__rdstate_ & badbit) != 0; }
inline _LIBCPP_HIDE_FROM_ABI ios_base::iostate ios_base::exceptions() const { return __exceptions_; }
inline _LIBCPP_HIDE_FROM_ABI void ios_base::exceptions(iostate __iostate) {
__exceptions_ = __iostate;
clear(__rdstate_);
}
template <class _Traits>
// Attribute 'packed' is used to keep the layout compatible with the previous
// definition of the '__fill_' and '_set_' pair in basic_ios on AIX & z/OS.
struct _LIBCPP_PACKED _FillHelper {
_LIBCPP_HIDE_FROM_ABI void __init() { __set_ = false; }
_LIBCPP_HIDE_FROM_ABI _FillHelper& operator=(typename _Traits::int_type __x) {
__set_ = true;
__fill_val_ = __x;
return *this;
}
_LIBCPP_HIDE_FROM_ABI bool __is_set() const { return __set_; }
_LIBCPP_HIDE_FROM_ABI typename _Traits::int_type __get() const { return __fill_val_; }
private:
typename _Traits::int_type __fill_val_;
bool __set_;
};
template <class _Traits>
struct _LIBCPP_PACKED _SentinelValueFill {
_LIBCPP_HIDE_FROM_ABI void __init() { __fill_val_ = _Traits::eof(); }
_LIBCPP_HIDE_FROM_ABI _SentinelValueFill& operator=(typename _Traits::int_type __x) {
__fill_val_ = __x;
return *this;
}
_LIBCPP_HIDE_FROM_ABI bool __is_set() const { return __fill_val_ != _Traits::eof(); }
_LIBCPP_HIDE_FROM_ABI typename _Traits::int_type __get() const { return __fill_val_; }
private:
typename _Traits::int_type __fill_val_;
};
template <class _CharT, class _Traits>
class _LIBCPP_TEMPLATE_VIS basic_ios : public ios_base {
public:
// types:
typedef _CharT char_type;
typedef _Traits traits_type;
typedef typename traits_type::int_type int_type;
typedef typename traits_type::pos_type pos_type;
typedef typename traits_type::off_type off_type;
static_assert(is_same<_CharT, typename traits_type::char_type>::value,
"traits_type::char_type must be the same type as CharT");
# ifdef _LIBCPP_CXX03_LANG
// Preserve the ability to compare with literal 0,
// and implicitly convert to bool, but not implicitly convert to int.
_LIBCPP_HIDE_FROM_ABI operator void*() const { return fail() ? nullptr : (void*)this; }
# else
_LIBCPP_HIDE_FROM_ABI explicit operator bool() const { return !fail(); }
# endif
_LIBCPP_HIDE_FROM_ABI bool operator!() const { return fail(); }
_LIBCPP_HIDE_FROM_ABI iostate rdstate() const { return ios_base::rdstate(); }
_LIBCPP_HIDE_FROM_ABI void clear(iostate __state = goodbit) { ios_base::clear(__state); }
_LIBCPP_HIDE_FROM_ABI void setstate(iostate __state) { ios_base::setstate(__state); }
_LIBCPP_HIDE_FROM_ABI bool good() const { return ios_base::good(); }
_LIBCPP_HIDE_FROM_ABI bool eof() const { return ios_base::eof(); }
_LIBCPP_HIDE_FROM_ABI bool fail() const { return ios_base::fail(); }
_LIBCPP_HIDE_FROM_ABI bool bad() const { return ios_base::bad(); }
_LIBCPP_HIDE_FROM_ABI iostate exceptions() const { return ios_base::exceptions(); }
_LIBCPP_HIDE_FROM_ABI void exceptions(iostate __iostate) { ios_base::exceptions(__iostate); }
// 27.5.4.1 Constructor/destructor:
_LIBCPP_HIDE_FROM_ABI explicit basic_ios(basic_streambuf<char_type, traits_type>* __sb);
~basic_ios() override;
// 27.5.4.2 Members:
_LIBCPP_HIDE_FROM_ABI basic_ostream<char_type, traits_type>* tie() const;
_LIBCPP_HIDE_FROM_ABI basic_ostream<char_type, traits_type>* tie(basic_ostream<char_type, traits_type>* __tiestr);
_LIBCPP_HIDE_FROM_ABI basic_streambuf<char_type, traits_type>* rdbuf() const;
_LIBCPP_HIDE_FROM_ABI basic_streambuf<char_type, traits_type>* rdbuf(basic_streambuf<char_type, traits_type>* __sb);
basic_ios& copyfmt(const basic_ios& __rhs);
_LIBCPP_HIDE_FROM_ABI char_type fill() const;
_LIBCPP_HIDE_FROM_ABI char_type fill(char_type __ch);
_LIBCPP_HIDE_FROM_ABI locale imbue(const locale& __loc);
_LIBCPP_HIDE_FROM_ABI char narrow(char_type __c, char __dfault) const;
_LIBCPP_HIDE_FROM_ABI char_type widen(char __c) const;
protected:
_LIBCPP_HIDE_FROM_ABI basic_ios() {
// purposefully does no initialization
// since the destructor does nothing this does not have ios_base issues.
}
_LIBCPP_HIDE_FROM_ABI void init(basic_streambuf<char_type, traits_type>* __sb);
_LIBCPP_HIDE_FROM_ABI void move(basic_ios& __rhs);
_LIBCPP_HIDE_FROM_ABI void move(basic_ios&& __rhs) { move(__rhs); }
_LIBCPP_HIDE_FROM_ABI void swap(basic_ios& __rhs) _NOEXCEPT;
_LIBCPP_HIDE_FROM_ABI void set_rdbuf(basic_streambuf<char_type, traits_type>* __sb);
private:
basic_ostream<char_type, traits_type>* __tie_;
# if defined(_LIBCPP_ABI_IOS_ALLOW_ARBITRARY_FILL_VALUE)
using _FillType = _FillHelper<traits_type>;
# else
using _FillType = _SentinelValueFill<traits_type>;
# endif
mutable _FillType __fill_;
};
template <class _CharT, class _Traits>
inline _LIBCPP_HIDE_FROM_ABI basic_ios<_CharT, _Traits>::basic_ios(basic_streambuf<char_type, traits_type>* __sb) {
init(__sb);
}
template <class _CharT, class _Traits>
basic_ios<_CharT, _Traits>::~basic_ios() {}
template <class _CharT, class _Traits>
inline _LIBCPP_HIDE_FROM_ABI void basic_ios<_CharT, _Traits>::init(basic_streambuf<char_type, traits_type>* __sb) {
ios_base::init(__sb);
__tie_ = nullptr;
__fill_.__init();
}
template <class _CharT, class _Traits>
inline _LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>* basic_ios<_CharT, _Traits>::tie() const {
return __tie_;
}
template <class _CharT, class _Traits>
inline _LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>*
basic_ios<_CharT, _Traits>::tie(basic_ostream<char_type, traits_type>* __tiestr) {
basic_ostream<char_type, traits_type>* __r = __tie_;
__tie_ = __tiestr;
return __r;
}
template <class _CharT, class _Traits>
inline _LIBCPP_HIDE_FROM_ABI basic_streambuf<_CharT, _Traits>* basic_ios<_CharT, _Traits>::rdbuf() const {
return static_cast<basic_streambuf<char_type, traits_type>*>(ios_base::rdbuf());
}
template <class _CharT, class _Traits>
inline _LIBCPP_HIDE_FROM_ABI basic_streambuf<_CharT, _Traits>*
basic_ios<_CharT, _Traits>::rdbuf(basic_streambuf<char_type, traits_type>* __sb) {
basic_streambuf<char_type, traits_type>* __r = rdbuf();
ios_base::rdbuf(__sb);
return __r;
}
template <class _CharT, class _Traits>
inline _LIBCPP_HIDE_FROM_ABI locale basic_ios<_CharT, _Traits>::imbue(const locale& __loc) {
locale __r = getloc();
ios_base::imbue(__loc);
if (rdbuf())
rdbuf()->pubimbue(__loc);
return __r;
}
template <class _CharT, class _Traits>
inline _LIBCPP_HIDE_FROM_ABI char basic_ios<_CharT, _Traits>::narrow(char_type __c, char __dfault) const {
return std::use_facet<ctype<char_type> >(getloc()).narrow(__c, __dfault);
}
template <class _CharT, class _Traits>
inline _LIBCPP_HIDE_FROM_ABI _CharT basic_ios<_CharT, _Traits>::widen(char __c) const {
return std::use_facet<ctype<char_type> >(getloc()).widen(__c);
}
template <class _CharT, class _Traits>
inline _LIBCPP_HIDE_FROM_ABI _CharT basic_ios<_CharT, _Traits>::fill() const {
if (!__fill_.__is_set())
__fill_ = widen(' ');
return __fill_.__get();
}
template <class _CharT, class _Traits>
inline _LIBCPP_HIDE_FROM_ABI _CharT basic_ios<_CharT, _Traits>::fill(char_type __ch) {
if (!__fill_.__is_set())
__fill_ = widen(' ');
char_type __r = __fill_.__get();
__fill_ = __ch;
return __r;
}
template <class _CharT, class _Traits>
basic_ios<_CharT, _Traits>& basic_ios<_CharT, _Traits>::copyfmt(const basic_ios& __rhs) {
if (this != std::addressof(__rhs)) {
__call_callbacks(erase_event);
ios_base::copyfmt(__rhs);
__tie_ = __rhs.__tie_;
__fill_ = __rhs.__fill_;
__call_callbacks(copyfmt_event);
exceptions(__rhs.exceptions());
}
return *this;
}
template <class _CharT, class _Traits>
inline _LIBCPP_HIDE_FROM_ABI void basic_ios<_CharT, _Traits>::move(basic_ios& __rhs) {
ios_base::move(__rhs);
__tie_ = __rhs.__tie_;
__rhs.__tie_ = nullptr;
__fill_ = __rhs.__fill_;
}
template <class _CharT, class _Traits>
inline _LIBCPP_HIDE_FROM_ABI void basic_ios<_CharT, _Traits>::swap(basic_ios& __rhs) _NOEXCEPT {
ios_base::swap(__rhs);
std::swap(__tie_, __rhs.__tie_);
std::swap(__fill_, __rhs.__fill_);
}
template <class _CharT, class _Traits>
inline _LIBCPP_HIDE_FROM_ABI void basic_ios<_CharT, _Traits>::set_rdbuf(basic_streambuf<char_type, traits_type>* __sb) {
ios_base::set_rdbuf(__sb);
}
extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_ios<char>;
# ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_ios<wchar_t>;
# endif
_LIBCPP_HIDE_FROM_ABI inline ios_base& boolalpha(ios_base& __str) {
__str.setf(ios_base::boolalpha);
return __str;
}
_LIBCPP_HIDE_FROM_ABI inline ios_base& noboolalpha(ios_base& __str) {
__str.unsetf(ios_base::boolalpha);
return __str;
}
_LIBCPP_HIDE_FROM_ABI inline ios_base& showbase(ios_base& __str) {
__str.setf(ios_base::showbase);
return __str;
}
_LIBCPP_HIDE_FROM_ABI inline ios_base& noshowbase(ios_base& __str) {
__str.unsetf(ios_base::showbase);
return __str;
}
_LIBCPP_HIDE_FROM_ABI inline ios_base& showpoint(ios_base& __str) {
__str.setf(ios_base::showpoint);
return __str;
}
_LIBCPP_HIDE_FROM_ABI inline ios_base& noshowpoint(ios_base& __str) {
__str.unsetf(ios_base::showpoint);
return __str;
}
_LIBCPP_HIDE_FROM_ABI inline ios_base& showpos(ios_base& __str) {
__str.setf(ios_base::showpos);
return __str;
}
_LIBCPP_HIDE_FROM_ABI inline ios_base& noshowpos(ios_base& __str) {
__str.unsetf(ios_base::showpos);
return __str;
}
_LIBCPP_HIDE_FROM_ABI inline ios_base& skipws(ios_base& __str) {
__str.setf(ios_base::skipws);
return __str;
}
_LIBCPP_HIDE_FROM_ABI inline ios_base& noskipws(ios_base& __str) {
__str.unsetf(ios_base::skipws);
return __str;
}
_LIBCPP_HIDE_FROM_ABI inline ios_base& uppercase(ios_base& __str) {
__str.setf(ios_base::uppercase);
return __str;
}
_LIBCPP_HIDE_FROM_ABI inline ios_base& nouppercase(ios_base& __str) {
__str.unsetf(ios_base::uppercase);
return __str;
}
_LIBCPP_HIDE_FROM_ABI inline ios_base& unitbuf(ios_base& __str) {
__str.setf(ios_base::unitbuf);
return __str;
}
_LIBCPP_HIDE_FROM_ABI inline ios_base& nounitbuf(ios_base& __str) {
__str.unsetf(ios_base::unitbuf);
return __str;
}
_LIBCPP_HIDE_FROM_ABI inline ios_base& internal(ios_base& __str) {
__str.setf(ios_base::internal, ios_base::adjustfield);
return __str;
}
_LIBCPP_HIDE_FROM_ABI inline ios_base& left(ios_base& __str) {
__str.setf(ios_base::left, ios_base::adjustfield);
return __str;
}
_LIBCPP_HIDE_FROM_ABI inline ios_base& right(ios_base& __str) {
__str.setf(ios_base::right, ios_base::adjustfield);
return __str;
}
_LIBCPP_HIDE_FROM_ABI inline ios_base& dec(ios_base& __str) {
__str.setf(ios_base::dec, ios_base::basefield);
return __str;
}
_LIBCPP_HIDE_FROM_ABI inline ios_base& hex(ios_base& __str) {
__str.setf(ios_base::hex, ios_base::basefield);
return __str;
}
_LIBCPP_HIDE_FROM_ABI inline ios_base& oct(ios_base& __str) {
__str.setf(ios_base::oct, ios_base::basefield);
return __str;
}
_LIBCPP_HIDE_FROM_ABI inline ios_base& fixed(ios_base& __str) {
__str.setf(ios_base::fixed, ios_base::floatfield);
return __str;
}
_LIBCPP_HIDE_FROM_ABI inline ios_base& scientific(ios_base& __str) {
__str.setf(ios_base::scientific, ios_base::floatfield);
return __str;
}
_LIBCPP_HIDE_FROM_ABI inline ios_base& hexfloat(ios_base& __str) {
__str.setf(ios_base::fixed | ios_base::scientific, ios_base::floatfield);
return __str;
}
_LIBCPP_HIDE_FROM_ABI inline ios_base& defaultfloat(ios_base& __str) {
__str.unsetf(ios_base::floatfield);
return __str;
}
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // !defined(_LIBCPP_HAS_NO_LOCALIZATION)
#if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
# include <atomic>
# include <concepts>
# include <cstddef>
# include <cstdlib>
# include <cstring>
# include <initializer_list>
# include <limits>
# include <mutex>
# include <new>
# include <stdexcept>
# include <system_error>
# include <type_traits>
# include <typeinfo>
#endif
#endif // _LIBCPP_IOS
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